Penguji GFT Gelbo Flex
- Standar: ASTM F392
- Pabrikan:Instrumen Sel
- Aplikasi: Bahan pengemasan, bahan perangkat medis, pengujian farmasi, perekat, tekstil, wadah kertas dan kardus, dan banyak lagi.
- Kustomisasi: Tersedia untuk persyaratan pengujian khusus dan transformasi otomatisasi
Introduction of Gelbo Flex Tester
Itu Penguji Gelbo Flex is a specialized instrument designed to evaluate the flex durability and mechanical integrity of flexible materials such as barrier films, laminates, and coated fabrics. By simulating real-world twisting and compressive deformation, this tester provides critical insights into the resistance of packaging and coated materials to pinhole formation, cracking, Dan barrier property degradation. Standards such as ASTM F392 Dan ISO 7854 define the testing methods that ensure accuracy, repeatability, and international comparability.
Itu Penguji Gelbo Flex, sometimes referred to as a rumple flex tester atau flex tester, operates by subjecting test specimens to simultaneous twisting and compressing motions. This combined action reproduces the mechanical stress flexible packaging materials experience during filling, sealing, transportation, and storage.
The test method, commonly known as the Gelbo test method, evaluates a material’s ability to maintain integrity under cyclic deformation. Materials that fail this test often develop microscopic pinholes or cracks that compromise the package’s barrier performance against oxygen, moisture, or gas transmission.
Principle of the Gelbo Flex and Related Standards
Two primary international standards govern flex durability evaluation: ASTM F392 Dan ISO 7854.
ASTM F392, titled Praktik Standar untuk Pengondisian Bahan Penghalang Fleksibel untuk Daya Tahan Fleksibel, specifies test conditions for assessing the resistance of flexible packaging materials to flex-induced pinholes and barrier failures. In this method, specimens undergo repeated flexing at 45 cycles per minute, involving a 440° twist combined with a 65 mm horizontal motion. The test is conducted under standard conditions of 23 ± 2°C Dan 50 ± 5% relative humidity. Depending on the desired conditioning level, test cycles may range from 20 to 2700, corresponding to levels A through E.
ISO 7854, Rubber- or plastics-coated fabrics — Determination of resistance to damage by flexing, defines three methods of flex testing. Method C, known as the crumple/flex method, closely resembles the Gelbo principle. Here, a cylindrical specimen is subjected to oscillating twist and axial compression, simulating real-life flex stress for coated fabrics, medical materials, and technical textiles.
Together, these standards establish the Gelbo flex procedure as the global benchmark for flex durability testing.
How the Gelbo Flex Tester Works
Itu Penguji Gelbo Flex (for example, the GFT Flex Durability Tester by Instrumen Sel) operates with high precision to replicate ASTM and ISO flexing motions.
- Persiapan Sampel: Standard samples are 200 × 280 mm, cut in both machine and transverse directions.
- Mounting: Samples are clamped or adhered to the tester’s mandrels, forming a cylindrical shape for simultaneous twisting and compression.
- Flexing Cycle: The tester executes a 440° twist during the first 90 mm of stroke, followed by a 65 mm linear compression, at a consistent 45 cycles per minute.
- Mode Selection: Users can select from five programmable test modes (A–E) to suit different material types or test objectives.
- Result Evaluation: After conditioning, specimens are inspected for pinholes, cracks, or barrier degradation using OTR (Oxygen Transmission Rate), WVTR (Water Vapor Transmission Rate)atau GTR tests.
This controlled process allows laboratories and quality control teams to quantify a material’s flex resistance and predict its performance under real-world mechanical stress.
Key Features and Main Parameter
Itu Penguji GFT Gelbo Flex series from Instrumen Sel offers advanced technology designed for high precision and ease of use:
- PLC Control & Touchscreen Interface – Ensures accurate motion control, user-friendly operation, and data repeatability.
- Multiple Test Stations – Available with three or four stations for parallel testing and comparative analysis.
- Programmable Test Conditions – Supports ASTM F392 modes A–E for versatile testing from quick screening (20 cycles) to endurance evaluation (2700 cycles).
- Durable Mechanical Design – Engineered for long-term stability and compliance with ASTM F392 Dan ISO 7854 standar.
- Enhanced Data Reliability – Supports post-test evaluation of barrier integrity, pinhole formation, and mechanical strength changes.
| GFT Gelbo Flex Durability Tester | ||
| Parameter | GFT-02 Model | GFT-01 Model |
| Sudut Fleksibel | 440° (90 mm) atau 400° (80 mm) | |
| Kapasitas | 3.5 N.m | 2,5 Nm |
| Goresan Horisontal | 155 mm atau 80 mm | |
| Stasiun | 3 | 4 |
| Ukuran Sampel | Ukuran 280 x 200 mm | |
| Kekuatan | Tegangan 110~220V | |
Applications of Gelbo Flex Testing
Gelbo flex testing is essential in industries where flexible materials must retain barrier integrity and aesthetic quality after repeated handling or mechanical stress. Key application areas include:
- Flexible Packaging for food, pharmaceuticals, and medical devices
- Coated Fabrics and Films for industrial, textile, and outdoor uses
- Adhesive Laminates Dan composite structures
- Kontrol Kualitas in R&D laboratories Dan certification agencies
By identifying weak points early, manufacturers can improve material formulation, coating technology, and lamination processes.
Tanya Jawab Umum
A: Gelbo Flex Tester dari Cell Instruments menawarkan perpaduan unik antara rekayasa presisi dan fitur desain inovatif. Dari antarmuka pengguna yang intuitif hingga kemampuan otomatisasinya yang canggih, setiap aspek dibuat dengan cermat untuk mengoptimalkan kinerja dan pengalaman pengguna. Selain itu, kompatibilitasnya di berbagai bahan dan industri menjadikannya sebagai solusi serbaguna untuk kebutuhan pengujian lentur.
A: Dengan melakukan pengujian lentur yang ketat pada material, penguji ketahanan lentur membantu mengidentifikasi kelemahan dan titik kegagalan potensial di awal proses pengembangan. Pendekatan proaktif ini memungkinkan produsen mengatasi masalah sebelum masalah tersebut memburuk, sehingga menghasilkan produk yang lebih tangguh, andal, dan pada akhirnya, berkualitas lebih tinggi.
A: Tentu saja! Gelbo Flex Tester dirancang untuk mengakomodasi berbagai ukuran dan bentuk sampel, menawarkan fleksibilitas dan keserbagunaan dalam pengujian. Baik Anda bekerja dengan film kecil dan halus atau material yang lebih besar dan lebih tebal, alat uji kami dapat beradaptasi untuk memenuhi persyaratan pengujian spesifik Anda dengan mudah.
J: Presisi adalah hal terpenting dalam penguji ketahanan lentur. Melalui kalibrasi yang cermat dan konstruksi yang kokoh, kami memastikan bahwa setiap pengujian menghasilkan hasil yang konsisten dan dapat diandalkan. Selain itu, penguji kami dirancang untuk meminimalkan faktor eksternal yang dapat memengaruhi hasil pengujian, yang selanjutnya meningkatkan akurasi dan pengulangan.
J: Di Cell Instruments, kami mengutamakan kepuasan dan dukungan pelanggan. Tim dukungan teknis kami yang berdedikasi siap membantu pengguna dengan pertanyaan, masalah, atau tantangan teknis apa pun yang mungkin mereka hadapi. Baik Anda memerlukan bantuan untuk pengaturan, kalibrasi, atau pemecahan masalah, para ahli kami siap memberikan dukungan yang cepat dan efektif untuk memastikan proses pengujian Anda berjalan lancar.
Referensi
ASTM F392 Praktik Standar untuk Pengondisian Bahan Penghalang Fleksibel untuk Daya Tahan Fleksibel
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